Portable heater.



W. LUNHAM 6; W. MOORE.

PORTABLE HEATER. APPLICATION IILBD MAY 11, 1914.

Patented Aug. 4, 191% 414 Mill-- INVENTOR WITNESSES ED STATES PATENT OFFICE.

WILLIAM LUNHAM, OF BRONXVILLE, AND WALTER MOORE, OF NEW YORK, N. Y.

PORTABLE HEATER.

. Specification. of Letters Patent.

Application filed May. 11, 1914. Serial NO. 837,722.

To all whom it may concern Be it known that we, WILLIAM LUNHAM, residing at Bronxville, 'Westchester county, State of New York, and 'WALTER MOORE, of New York city, county and State of New York, citizens of the United States, have invented an Improvement in Portable Heaters, of which the following is a specification.

()ur invention relates to portable heaters designed for use with solidified liquid fuel, such as shown in the Perelzveich and Rosenb'usch Patent Number 922,503 of May 25, 190.); and it comprises certain improvements on the type of device therein illustrated, having for their general objects to render the heater more convenient and satisfactory in use, and at the same time to secure a very simple and cheap construction.

In the accompanying drawings illustrating the invention: Figure 1 is a side elevation of the improved device with the vessel.- supports collapsed against the holder; Fig. 2 is a vertical section showing the can burnen somewhat elevated; Fig. 3 is a horizontal section; and F ig. 4- is detail of a portion of the holder spread out flat at the region of a sleeve.

In accordance with the present invention a can burner 1, designed to hold solidified alcohol, is mounted for vertical, frictional adjustment, to bring the flame nearer to or farther from the vessel being heated, within. a tubular holder 2, to which the vessel-sup. porting frames 3 are hinged for horizontal adjustment. The holder is open at both ends, and expansiblc, while the can burner is of such diameter as to fit forcibly into the holder, being capable of being pushed up or down and held at any degree of vertical adjustment, within limits, relatively to the frames 3 and the vessel that may be supported thereby. The said frames or wings 3 are of the general character disclosed. in the priorpatent aforesaid, each having legs -t and 5 and a connecting horizontal top IllOlI'lbLl 6, the legs 4 being pivotally received in sleeves 7, and the top members constitutin g a supporting base whichis expansible or contractible according to the size of the vesscl to be heated. Thus the frames can be collapsed against and surrounding the holder, as shown in Fig. 1, in condition for carrying, or they may be swung outward as shown in Fig. 3, or to any position desired.

The holder 2 is made of a strip of sheet metal which is curved into tabular form and it's ends united by a vertical seam 8 of suitable formation. At intervals the material of the holder wall is bent or looped outward so as to form the vertical sleeves 7, these sleeves being continuous with the wall portions at both sides of them and affording in effectvertical slits or slots 9 in the internal wall, burner 1 is forced into the holder and enable the latter to clasp the burner reliably at anyheight. These openings extend all the way to the edges of the holder, but the sleeves preferably terminate at a short distance therefrom, the marginal portions being bent or rolled over to form reinforcements 10.

As indicated in Fig. 4, the strip of metal of which the holder is formed has material cut away at intervals in the marginal regions which are to be rolled over to form the which give slightly when the can reinforcing beads 1.0, and it is the body portions 12 in vertical alinement with those notches 11 which are curved outwardto form the sleeves 7. The making of these sleeves brings the edges of the recesses 11 together or substantially together, so as to form in effect continuations of the. sleeve slits. In a similar manner the marginal regions are cut away at the ends of the seam 8.

The can burner l is capable of manufacture in a simple manner cost, and is preferably provided with an ordinary form of slip closure 14.

In accordance with our improved construction, the adjustment of the burner toward and from the receptacle resting on the supports 3 is notsecured by sliding the part bearing the sleeves 7 on the legs 4, but, as explained, by down in its clasping-holder. In fact any substantial extent of vertical movement of the holder is preferably prevented by ottsets 15 in the legs 4 immediately abovothe and at very low.

pushing the burner up or upper ends of the sleeves, though preferably- 0 a slight amount of movement 1s permitted so that the holder can either rest on an underlying surface, as shown in Fig. 2, or slightly raised above it,.as in Fig. 1. The former arrangement is somewhat more stable, but in event of danger of heat transmitted downward through the holder injuring the surface beneath, the holder may be caused to clear the same.

In order further to guardragainst the bottom of the holder becoming sufficiently heated to injure a table or the like on which it may be placed, and also to guard against of the holder wall bent outward to form ex-' the overheating of a confined body of air be-,

low the can burner, so as to melt the solidified fuel therein, the holder is provided ad-., jacent itslower end with a series of ventilating openings 16. extending all the. way.

' ginal portions being bent outward to form external verticalsleeves, in combination with around the same.

In Fig. 2 the fuel in' the can iburner is shown almost exhausted, but initially it willbe understood the can is full, and preferably when the charge is completely exhausted thecan is discarded-and another, filled 'canprocured to take its place. i 1

The offsets'lh 1n the pivotal legsiof the vessel supports are so formed osition'ed as to overlie the 'upper edge 0 =th'e"'can burner when thesupports are closed against the holder in condition for earrying,f'as shown in Fig. 1, thus preventing dislodg ment of the burner fnoni the'holder under such conditions. In Fig. 3,-"which represents the supporting frame's as" swung outward from the holderybne of them is also shown by dotted lines as folded 'against'the holder, so that its ofi'set portion occupies the position described.

What we claim as'ne'w is:

1 A portable heater, comprising an'exansible holder, and vessel supporting frames each comprising legs and a connecting top member hinged by one leg'of each at spaced points to'the' sides of the holder, whereby the frames may fold into compact relation with the holder or be adjusted 'o'ut- Ward therefrom, in combination with a can burner designed to hold solidified liquid fuel, said burner being of such diameter as to fit forcibl', into said expansible holder and to be held at various degrees ofvertical adjustment therein. e

2.,A portable heater, comprising a tubular holder having a distributed series of verticalexpansion regions comprislng portions ternal sleeves continuous with the wall portions at o osite sides and affording vertical splits in the internal Wall extending from'. "to bottom of the holder, a can burner detop signed to contain solidified liquid fuel vertically and frictionally adjustable insaid holder, and vessel-supporting frames having one leg of each rotatably received in said sleeves." 1' I 1 l 3. A portable heater, comprising a tubular one holder formed of a strip of sheet metal haw ing sections cut out of its marginal portions at intervalsand said marginal portions bent overto formreinforcements, the body portions' of the wall of the holder vertically in line with the cut out sections of the said mar- -a can burner designed to contain solidified liquid fuel within said holder, and vess'el "supporting frames having o-neleg of'each rotatably received "in said sleeves.-

'- 4. A portable heater,"comprising atubu- 'lar expansible; holder having ventilating openings in its lower portion, a plurality of vessel-supporting frames each comprising legs and 'a'connecting top-member hinged by leg or each atspaced points'to the body, and aca'nburner designedtocontain solidifled liquidfuelivertically and 'frictionally adjustablein said holder.

'57- In a portable,-- heater, the combination."

'ofatubular holder, a removable can" burner designed to hold solidified liquid fuel verti'cally and frictionally' adjustable in? said holder; and collapsible and adjustable vessel supporting means mom-prising frames e'a'chhavin'g legs and a connecting top member hinged by one leg of "each at spaced pointsto the body.

' 1 In a portable Y of a holder, a removable can burner to holdsolidifie'd liquid fuel in said holder, and collapsible and adjustable vessel-supporting In'eanscomprising. frames each having legs and a connecting top member hinged by one leg of each at spacedpoints to the body, the pivotal 1e of one or 'more of said frames havinga'n 0 set portion adapted when the frame is folded against the holder to overlie the upper edge of said burner.'

7 A portable heater, comprising a holder having a distributed series of external vertical sleeves, a can burner designed to contain solidified liquid fuel vertically and frictionally adjustable in said holder, and vesselsupporting frames having oneleg of each .rotatably received in said sleeves, the said legs having offset portions above saidsle'e'ves.

. WM. LUNHAllL WALTER MOORE.

heater, the combination desi ned 

